Say goodbye to range anxiety. The Rad Power Bikes RadRunner Range Extender transforms your compatible RadRunner into a dual-battery powerhouse capable of riding well over 100 miles without stopping to recharge.

Designed for the RadRunner Plus (MY2025), RadRunner 3 Plus, and RadRunner Max, this accessory unlocks true long-range performance. By balancing energy between two batteries, the Range Extender reduces strain on each pack — extending battery health and optimizing performance for the long haul.

Need to head out fast? No problem. Your bike still runs on a single battery, so you’re never stuck waiting to charge both. Plus, it supports both 14Ah and 15Ah Safe Shield™ batteries, giving you the flexibility to mix and match for your perfect setup.

Features:

• Enables dual-battery operation for 100+ mile range
• Compatible with Safe Shield™ 14Ah and 15Ah batteries (sold separately)
• Includes mounting bracket, lockable enclosure, and hardware kits
• Smarter power distribution for extended battery lifespan
• Bike remains fully functional with a single battery

Compatibility:

• Compatible e-bikes: RadRunner Plus (MY2025), RadRunner 3 Plus, RadRunner Max
• Compatible batteries: Safe Shield™ Advanced Semi-Integrated Battery (15Ah), Safe Shield™ Semi-Integrated Battery (14Ah)
• Compatible accessories: pannier bags, hardshell locking box, passenger seats, bars, caboose, Thule Yepp Maxi seats, and more
• Note: To use the Rad Fat Tire Wheel Lock with this extender, the Rad Fat Tire Wheel Lock Mount is required (sold separately)

Details:

• Includes: mounting bracket, lockable enclosure, battery doubler (pre-installed), 2 foldable keys, wiring kits, tools, and instruction manual
• Battery and charger sold separately
• To charge both batteries simultaneously, use a second Rad Battery Charger

Sizing & Capacity:

• Dimensions: 20.8” L × 5.0” W × 5.5” H (53.0 × 12.7 × 13.9 cm)
• Weight: 4.9 lbs (2.2 kg) without battery
• Estimated total capacity & range:
  • RadRunner Plus (MY2025): 27–29 Ah / 117–126 miles
  • RadRunner Max: 28–30 Ah / 121–130 miles
  • RadRunner 3 Plus: 28–30 Ah / 121–130 miles

Installation & Use: Professional assembly recommended. Visit your local Rad Service Provider for installation support.